Hey there,
Since XBC declared bankruptcy - it is effectively going to be a total loss for shareholders. I believe it can still be traded on the OTC markets, but in effect bankruptcy proceedings will determine how the company's assets are divided. Common shareholders are usually the lowest in terms of priority while creditors are given top priority. Often, a buyer will come in and scoop up the company on the cheap and the debt holders will recoup whatever they can leaving the shareholders with nothing.
That said, there is the potential that the company does re-organize itself and current shares remain intact - but that doesn't happen too often. Usually, the company cancels the old shares which leaves nothing for the shareholders as part of the restructuring.
That is why at this point, I'd effectively consider the investment a write-off and total loss.
Mat